Nested Interface With Rule Input Starting With 'temp'

Question

Hi All 
 I have encountered a very strange behaviour where I create an interface in an a!foreach. 
 When using the two pieces of code it displays the interface for each of the parents but as soon as i edit one it deletes any subsequent parents and removes the interface: 
 CODE1: With strange behaviour 
 a!forEach( items: ri!tempBom, expression: a!sectionLayout( contents: rule!PDP_uiRecipeAndPackagingDecisionQuestions( tempBOM: fv!item, newProductRequired: true, packagingTempComponents: ri!packagingTempComponents, blendTempComponents: ri!packagingTempComponents, ), showWhen: local!activeStep = 2 + fv!index ) ) 
 If I change the input name on the child to the just 'BOM', and change it at the parent, it all works perfectly 
 CODE1: With correct behaviour 
 a!forEach( items: ri!tempBom, expression: a!sectionLayout( contents: rule!PDP_uiRecipeAndPackagingDecisionQuestions( BOM: fv!item, newProductRequired: true, packagingTempComponents: ri!packagingTempComponents, blendTempComponents: ri!packagingTempComponents, ), showWhen: local!activeStep = 2 + fv!index ) ) 
 It seems as though somehow APPIAN doesn't like the word temp, can anyone shed some light as to why? This issue is resolved but would just like to learn a bit more.

Chris · Answer

I can't replicate this behavior locally with a simple, dynamically nested interface using 'temp' in an of the inputs - all works as expected. I'm wondering if something in your saveIntos within the PDP_uiRecipeAndPackagingDecisionQuestions interface is related to the issue. AFAIK 'temp' is not an Appian keyword, and if it were, inputs with partial keyword usage such as ' label ColorScheme' should not cause any issues (as inputs with exact keywords can create undesired behavior - thanks Stefan for digging that link up). 
 One note however is your packagingTempComponents and blendTempComponents inputs are the same value of ri!packagingTempComponents - assuming this is not intended and may create unexpected behavior.